See also:

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...

Tone
Only treble and bass can be set in the rear for headphones. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...

Windshield washer nozzles
The windshield washer nozzles are heated automatically while the engine is running or the ignition is switched on. ...